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Journal : Seminar Nasional Lahan Suboptimal

Biofortification of Iodine Concentration in the Leaves of Amaranthus Sp and Ipomea reptan Poir Growing in Hydroponic Culture Munandar, Munandar; Toumae, Villian; Ammar, Muhammad; Gustiar, Fitra
Seminar Nasional Lahan Suboptimal 2019: Prosiding Seminar Nasional Lahan Suboptimal “Smart Farming yang Berwawasan Lingkungan untuk
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Abstract

Munandar M, Toumae V,  Ammar M, Gustiar F.  2019.  Biofortification of Iodine Concentration in the Leaves of Amaranthus Sp and Ipomea reptan Poir Growing in Hydroponic Culture. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal 2019, Palembang 4-5 September 2019. pp. 360-369. Palembang: Unsri Press. Biofortification of Amaranthus sp and Ipomea Reptan Poir with iodine is one of the alternative strategies for the enrichment of iodine in vegetable plants. The leafy green vegetables are categorized as horticultural crops, these are easy to cultivate, cheap and affordable for people in rural areas. The aim of this research was to increase iodine concentration in the leaves of Kangkung (Ipomea reptan poir) and spinach (Amaranthus sp) grown in hydroponic culture and evaluate its effect on plant growth. The experiment was conducted from November 2018 to February 2019 at the Hydroponic Shade House, Department of Agronomy, Faculty of Agriculture, Sriwijaya University.The design method used for this research was Completely Randomized Design (CDR) with 4 treatment of Iodine concentration in culture  solution and 4 replications. The treatments were: T0 = 0 ppm, T1 = 25 ppm KI, T2 = 50 ppm KI and T3 = 75 ppm KI, which comprises of 16 experimental units. Each unit of experiment consisted  of a container filled with 6 liters of A&B mix culture solution and    6 plants, i.e. 3 kangkung and 3 spinach were planted. Based on the results, it showed that the analysis of variance for plant height, leaves number, and chlorophyll content were not significantly different for both kangkung and spinach. While the ANOVA for fresh weight of kangkung leaves and stalks were highly significant, and the dry weight of kangkung leaves was significant. The   iodine in leaves   of kangkung (Ipomea reptan poir)   increased with the increasing the amount of iodine concentration supplementation in culture solution. The iodine content in leaves of T1 plant (25ppm) was between the range of 7-15ppm, for T2 plant (50ppm) while  in T3 plant (75 ppm) the iodine content in leaves was between the range of 20-27 ppm. Spinach plant  (Amaranthus sp) grow well only until the Iodine concentration,  treatment of 25 ppm (T1), and the iodine content in leaves reached the range of 7-15ppm. At   the  treatment of 50 ppm KI (T2)  and 75 ppm (T3)  leaves of spinach plants showed  heavy necrosis   as a symptom of  high iodine toxicity, and  plants was dry and died at three weeks after the  Iodine treatment.  In general, it is concluded that  biofortification of Iodine in the leafy green vegetables by applying hydroponic culture is possible.The highest concentration supplementation of Iodine in culture solution  for Iodine biofortification in  Spinach plant  (Amaranthus sp)  was  25 ppm, while for   kangkung (Ipomea reptan poir)  was  50 - 75ppm.Keywords: biofortification, iodine supplementation, hydroponic culture. kangkung, spinach
Co-Authors A. I. Munawar A.A. Ketut Agung Cahyawan W Abbas, Damanhur Achmad Fauzan, Achmad Adnir, Farid Afriana, Ulfa’Izah Nur Agusriati Muliyana Agustiar, Muhammad Agustinawati, Agustinawati Ahmad Soandi Sihombing Akbar, Fauzan Alfina, Alfina Andesta, Andesta Anugrah E, Dwiyan Arief Maulana Arliansyah, Arliansyah Azizah, Lisa Nur Chalirafi, Chalirafi Citra Dina Febrina Damanik, Nurliana Dedik Budianta Devi Andriyani Devia Rahmah Dewantara, Jagad Aditya Dewi Fithria Dezkaesni, Safira Dianshar, Rahmad Dr. Susilawati Susilawati Edwarsyah Edwarsyah, Edwarsyah Eka Lisdayanti Endah Anisa Rahma, Endah Anisa F, Falahuddin F, Fuadi Fadilah, Nila Falahuddin, Falahuddin Farid Adnir Fauzul Hakim Hasibuan, Ahmad Febrina, Citra Dina Fitra Gustiar, Fitra Fitria Rahmayanti Fuadi Fuadi Halim, Maulana Harahap, Khairul Luthfi Harahap, Puad Batari Hasibuan, Anwar Arif Hasibuan, Riza Sakhbani Hasmeda, Mery Hasnah Nasution Heikal, Mohd. Hendri, Afrizal Heriansyah Ichsan Ichsan Ilahi, Ridha Imran Imran Inda Rahmayani, Ratu Fazlia Inggria, Annisa Irhami, Irhami Irhamna, Reza Islama, Dini Ismail Sulaiman Iwan Ramadhan Koto, Aldi M. Hasan Mahendra Mahendra Mariati Hutabarat, Ayu Marzuki Marzuki Masyhur Masyhur Mayada, Wafiq Mislina, Mislina Muammar Khaddafi Muhammad Ammar Muhammad Hidayat Muhammad Muhammad MUHAMMAD RIZAL Muhammad Syawal Mukaromah, Lailatul Mukhtarida, Mukhtarida Muktaridha, Muktaridha Muliyana, Agusriati Munardi Munardi Mursawal, Asri Nanda Muhammad Razi Nasution, Maylinda Naufal Bachri, Naufal Nugraha, Babang Prima Nurlela Nurlela Nurul Najmi Nurwijayanti Permata, Maulin Prayoga, Muhammad R. Hayati R. Sugeng Mulyono Rahmayanti, Fitria Ranggayoni, Nanda Putri Reza Juanda Rico Nur Ilham Riswan, M Ronal Kurniawan Rosyah, Lidiana Rudi Hermi Rujito Agus Suwignyo Ryandi Ryandi, Ryandi Sahputra , Hery Sahrin, Abu Salsa Divi Zianka Sentiya, Novi Simamora, Pimpinan Abaik Siregar, Ayu Lestari Siregar, Khoirun Nisa Siregar, Muhammad Nuh Siregar, Rania Febriyola Sri Wahyuni Sri Wahyuni Sufal Diansyah Sulis, Sulis Syahrul R, Syahrul Syamsul, Irhami Syam’un, Syam’un Syauki, Moh. Toumae, Villian Twk Mohd Iqbal Uswatun Hasanah Wintah, Wintah Yakup Parto Yasal, Yasal Yasmin, Athiyah Zahidah, RA Ghina Zulkarnaen Zulkarnaen